Settling is a process in which particles in a suspension settle to the bottom of the container due to gravity. This process can be used to separate solids from liquids or gases. For example, settling can be used to separate sand from water or dust from air.
Filtration is a process in which a mixture is passed through a filter, which traps the solid particles while allowing the liquid or gas to pass through. This process can be used to separate solids from liquids or gases. For example, filtration can be used to separate coffee grounds from coffee or dirt from water.